How is an incorrect signal evaluated?

An incorrect signal is evaluated as "Bad" because it indicates that there has been a failure in the communication or transmission process. In any testing or evaluation scenario, particularly in the context of data signals, a "Bad" signal shows that the information received does not meet the required standards or criteria. This can lead to misinterpretations or errors in decision-making based on that data.

In contrast, the other possible evaluations like "Good," "Fair," and "Unsatisfactory" suggest varying degrees of acceptance or performance levels that do not adequately represent the severity of an incorrect signal's implications. A "Good" signal indicates optimal performance, while a "Fair" rating suggests mediocre, but still acceptable transmission. "Unsatisfactory" indicates a level of performance that warrants concern but does not specifically denote the definitive failings of an incorrect signal like “Bad” does. Thus, labeling an incorrect signal as "Bad" precisely reflects its failure to convey the intended message effectively.